/*
 * Copyright © 2011 Nokia Corporation. All rights reserved.
 * Nokia and Nokia Connecting People are registered trademarks of Nokia Corporation. 
 * Oracle and Java are trademarks or registered trademarks of Oracle and/or its
 * affiliates. Other product and company names mentioned herein may be trademarks
 * or trade names of their respective owners. 
 * See LICENSE.TXT for license information.
 */ 

package com.nokia.example.wordpress.networking;

import java.util.Calendar;
import java.util.Vector;
import org.xml.sax.Attributes;

/**
 * Parses the post server response, creates an array of Post objects.
 */
public class PostsParser extends Parser {

    /**
     * Result vector of Posts.
     */
    public Vector posts = new Vector();
    /**
     * Current Post being parsed.
     */
    private Post post = null;
    /**
     * For keeping track of nested <struct> eleements. To keep the parser
     * as simple as possible, those can be ignored.
     */
    private int nestedStruct = 0;
    /**
     * Reference to a Blog that can be plased inside the Post objects for  convenience.
     */
    private Blog blog;

    public PostsParser(Blog blog) {
        this.blog = blog;
    }

    public void startElement(String uri, String localName, String qName, Attributes attributes) {
        super.startElement(uri, localName, qName, attributes);

        // Keep track of <struct> elements, ignore all child structs
        if (qName.equals("struct")) {
            nestedStruct++;
            if (post == null && nestedStruct == 1) {
                post = new Post(blog);
            } else {
            }
        }
    }

    public void endElement(String uri, String localName, String qName) {
        String chars = getChars();

        if (qName.equals("struct")) {
            nestedStruct--;
            if (nestedStruct == 0 && posts != null) {
                posts.addElement(post);
                post = null;
            }

        } else if (qName.equals("name")) {
            if (chars.equals("postid") || chars.equals("description") || chars.equals("title") || chars.equals("dateCreated")) {
                current = chars;
            }
        } else if (qName.equals("string")) {
            if (current.equals("postid")) {
                post.postId = chars;
                current = "";
            } else if (current.equals("title")) {
                post.title = chars;
                current = "";
            } else if (current.equals("description")) {
                post.description = chars;
                current = "";
            }
        } else if (qName.equals("dateTime.iso8601") && current.equals("dateCreated")) {
            post.date = convertDate(chars);
            current = "";
        }
    }
}


/* Server response:
<?xml version="1.0"?>
<methodResponse>
<params>
<param>
<value>
<array><data>
<value><struct>
<member><name>dateCreated</name><value><dateTime.iso8601>20100520T11:59:08</dateTime.iso8601></value></member>
<member><name>userid</name><value><string>14180154</string></value></member>
<member><name>postid</name><value><string>3</string></value></member>
<member><name>description</name><value><string>Testing, blog text</string></value></member>
<member><name>title</name><value><string>Testing, title</string></value></member>
<member><name>link</name><value><string>http://blogusername.wordpress.com/2010/05/20/testing-title/</string></value></member>
<member><name>permaLink</name><value><string>http://blogusername.wordpress.com/2010/05/20/testing-title/</string></value></member>
<member><name>categories</name><value><array><data>
<value><string>Uncategorized</string></value>
</data></array></value></member>
<member><name>mt_excerpt</name><value><string></string></value></member>
<member><name>mt_text_more</name><value><string></string></value></member>
<member><name>mt_allow_comments</name><value
><int>1</int></value></member>
<member><name>mt_allow_pings</name><value><int>1</int></value></member>
<member><name>mt_keywords</name><value><string></string></value></member>
<member><name>wp_slug</name><value><string>testing-title</string></value></member>
<member><name>wp_password</name><value><string></string></value></member>
<member><name>wp_author_id</name><value><string>14180154</string></value></member>
<member><name>wp_author_display_name</name><value><string>blogusername</string></value></member>
<member><name>date_created_gmt</name><value><dateTime.iso8601>20100520T11:59:08</dateTime.iso8601></value></member>
<member><name>post_status</name><value><string>publish</string></value></member>
<member><name>custom_fields</name><value><array><data>

<value><struct>
<member><name>id</name><value><string>2</string></value></member>
<member><name>key</name><value><string>_edit_last</string></value></member>
<member><name>value</name><value><string>14180154</string></value></member
>
</struct></value>

<value><struct>
<member><name>id</name><value><string>3</string></value></member>
<member><name>key</name><value><string>_edit_lock</string></value></member>
<member><name>value</name><value><string>1274356754</string></value></member>
</struct></value>
</data></array></value></member>
</struct></value>
<value><struct>
<member><name>dateCreated</name><value><dateTime.iso8601>20100520T11:53:54</dateTime.iso8601></value></member>
<member><name>userid</name><value><string>14180154</string></value></member>
<member><name>postid</name><value><string>1</string></value></member>
<member><name>description</name><value><string>Welcome to &lt;a href=&quot;http://wordpress.com/&quot;&gt;WordPress.com&lt;/a&gt;. This is your first post. Edit or delete it and start blogging!</string></value></member>
<member><name>title</name><value><string>Hello world!</string></value></member>
<member><name>link</name><value><string>http://blogusername.wordpress.com/2010/05/20/hello-world/</stri
ng></value></member>
<member><name>permaLink</name><value><string>http://blogusername.wordpress.com/2010/05/20/hello-world/</string></value></member>
<member><name>categories</name><value><array><data>
<value><string>Uncategorized</string></value>
</data></array></value></member>
<member><name>mt_excerpt</name><value><string></string></value></member>
<member><name>mt_text_more</name><value><string></string></value></member>
<member><name>mt_allow_comments</name><value><int>1</int></value></member>
<member><name>mt_allow_pings</name><value><int>1</int></value></member>
<member><name>mt_keywords</name><value><string></string></value></member>
<member><name>wp_slug</name><value><string>hello-world</string></value></member>
<member><name>wp_password</name><value><string></string></value></member>
<member><name>wp_author_id</name><value><string>14180154</string></value></member>
<member><name>wp_author_display_name</name><value><string>blogusername</string></value></member>
<member><name>
date_created_gmt</name><value><dateTime.iso8601>20100520T11:53:54</dateTime.iso8601></value></member>
<member><name>post_status</name><value><string>publish</string></value></member>
<member><name>custom_fields</name><value><array><data>
</data></array></value></member>
</struct></value>
</data></array>
</value>
</param>
</params>
</methodResponse>
 */
/*
<params>
<param>
<value>
<array><data>
<value><struct>
<member><name>postid</name><value><string>1</string></value></member>
<member><name>description</name><value><string>Testing, blog text</string></value></member>
<member><name>title</name><value><string>Testing, title</string></value></member>
 */
